Window guard



July 5 1927.

A. T. McwANE WINDOW GUARD E Sheets-Sheet 1` liv/ly. 3

Filed June 8, 1925 July 5,1927. 4 Lsn A. T. MQWANE WINDOW GUARD Filed June 8, 1925 2 Sheets-Sheet' 2 Fg. f

Patented July 5, 1927. n

UNITEDQSTATES Param ori-fic ARTHURT. MGWANE, or BIRMINGHAM, ALABAMA.

WINDOW GUARD.

Application filed .Tune 8,

'.Thisinvention relates to window guards f rguard on the lower sash and contemplates the provision of manually controllablemeans to connect or disconnect'the guard from `the ',sash. Y y My inventionfurther contemplatesl the( provision of means to' support the guard infv its raisedpositions rso astoj prevent its weight overbalancmg thegsash weights, it being "obs viouslyf desirable that if the window'is to be operatedr both with and 4without the guard, its `sashweights should be vadapted to balance only the Window sash.r Y f V `My invention 4further contemplates the` ap-4 plication 'of 'a`vrr guard in any Vdesired. manner to .the upper Vsash andthe provision 'of weights for' theupper' sash adapted to counterbalanceb'oth the sash and its guard.

The special advantageot my invention' lies in the fact that-the guard can be detaohed from the lower sash, which is normal- 1y the one operated vduring the day, and concealed so that there is no suggestion of the provision of the guard and thus the appearance of the window is not V-detiacted from.

Cil

A further important feature of my invention is the lprovision of a novel latch means for connecting 'the guard to the sash so that it cannot ybe unlato'hed, vwhen the window is raised, without taking out the sash.

My invention also contemplates 'the novel details of construction andarrangements of parts, which in theirfpre'ferred embodiment only are illustrated in 'the' accompanying drawings, in which Y Figxl is a front elevation of a window partly broken awayl andshowing the upper and lower guards in dotted lines in position assumed when-the windows are closed. .Fig- Q is a similar View of `the yopposite side-of the window illustrating a modilied Fig'. 3 is a vertical central cross-sectional view. through `the window illustrated in' Fig. 1. Y

yFig. .4 is an enlargeddetail view of the corner of the lower sash and adjacent frame broken away to show the co-related recesses in the latch and frame and illustrating the latch mechanism inside elevation.

1923. Serial No. 644,260..

Fig. 5 is a view showing part of the lower sash' and guardfin elevation with vthe window frame and sashbroken away, Vas showni i in Fig. 4t, and indicating the latch for sup-1 porting the weight et the guard when raised.

Fig. G` is a cross-sectional view, taken onv the line 6%.6 oiFigl-, and'shows in plan that part of the bot-tom sill of the window frame underlying the lower sash.

Fig. .7 isa cross-sectional view'ftaken on the-line 7-7 of Fig. 2 andshowing a modified type ofla'tchoperating means. Similar reference numerals refer to similar!` parts throughout the drawings. i Referring to `the embodiment-.ot k"my" in-` vention illustrated in Figs. V1, 3, 4 and f5, I show the lowersashKllO and the upperlsash 11i mounted to. slide'vertically in the' usual' v guides, in a windowvfraniel-Q. 'I prefer to mount a. 'suitable guardk on the top rail 13 ot the `upper. sash in rsuch manner as Vnot to be removable while the sash is 1n the trame',

:said guard comprising Aa base 14 having' downturned ears'secured to the ends ofthev rail V13.` Upright bars 15 on said base workv throughsuitable openings in the top frame` member 16 and enter the open 'space in the wall above the window. This top guard may be dispensedwith, if desired, and it' is to be understood that its use in conjunction with the guardof the lower sash is optional. Where such a guardfis used the upper sash vill have sash Weights 37 which will counteri balance the. upper sash and its guard. The

vlower sash on the contrary will havel only the sash weights 38 adapted to balance the weight of the lower sash alone. i

-In the bottom rail 17 of the lower sash at each end I provide av countersunk recess orv seat 18 to the inner wall ot' which is attached-by screws, or in any other manner, a Vlatch keeper or detent 19. The lower window guard isa metal grill or frame of any suitable design, that shown comprising a. top member 2O having cast integral therewith or otherwise connected thereto depending bars or rods 21 which lormV the guard proper. The top member Q() is preferably'received ina transverse recess 20a in the rail 17 and has at each end a countersunk recess in which a latch 22 is pivotally mounted by a rivet or pivot pin Q3, the latchy being` adapted to enter the recess 18 so as to engage the keeper 19. The latch end and thekeeper `are suitably 4bevelled to permit the keeper to `move down into interlocking engagement with the latch when the sash hilly lowered. In the sid` meinhcr itlol the window frame is a, reces covered over hy a eountcrsunh plate 2li harina" an out wardly swine-ine' hinged door 2T therein which is pressed towards the window sash hy a, coil springr 2H n'iounted en the hinge pin el the door. lhis door 2T stands oppo site the latch when the window is lowered and serves as a spring .recess to torce and hold the latch in interloclced relation 'with its keepe and yet which will yield to permit the latch to he released. il latch relcasw ingr pin 25) is mounted to slide in the rail 1T opposite each latch and it; is adapted when moved away :trom the center ot the window, against the action ol a coil springt tit), to engage and torce the latch outwardly against the action el spring; n snithciently to unlateh it from the keeper l9land thus permit the lower sash l0 to he raised with* out carryingF with it the Window `:guard it is obvious that when the guard is hitched to the Window and its latches titl have heen raised above their respective doors 27, it Will be impossible to torce the latches outwardly sutliciently to disengrzpe them from the datent 19, as the iti-ame holds the latches in engagement With their keepers, as is clearlyY apparent in the vien shown in Fie. The `wird is thus held positively interlocked With the sash when it has been raised to open the Window to anyY extent and, it is not possible :tor a burglar hy insertu'nr his hand through the ,guard to detach it from the Window.

Inasmuch as the latchine' ot the guard to the lower sash will unhalanee its sash Weights it is necessary to provide stop means to hold the window and ward in operating` positions and to this end l provide in one or more ol the 1guard hars 2l a series ot notches or teeth il `which are adapted to he engaged by a stop plate 3Q pivotally connected to an attaelnnent plate 353 secured to the bottoni rail llot' the window trame. lli desired the top member 2O can he countersunk at 2:55 to receive in the pocket thus formed the nieniliers l2 Il?) when the stop folded down out oil' operatingl i'iosition.

In operation, when it is desired to conceal the lower sash guard, the louer .sash lt) is closed, the latch pins 29 are pressed outwardly to diseniface the latches trom the detents i9. lllhile held in this position the window lifted hy `grasping,r the handhelds 35, which are disposed conveniently to the latch pins, leaving;1 the guard concealed below the .inside plate ilt oil.E the traine. llihen it is desired to use the guard the lower sash is closed, the latch inemhers Q2 and 19 auttnnaticall3iT interlock and then h v grasping` the hand `grips 35 on the sash` the sash and guard can he raised together, and when adjusted to the desired height Losa-,841

the stop plate 32 swung' up into engage nient with the teeth 3l. and the eomhined windev` and `nnard are held in this position. The lvindmv can he raised :further without disturhinig the stop tlf), hut whim it is desired to lon'er the Window the stop BQ must lie disengaged trom the teeth il and Yt'olded down an inst the plate HQ. i

In Figs. 2 and i' I show a modification ot my invention, wherein the recess 1S tor the latch is eut in the inner side tace ol the hottom rail 17 in position to he overhuugll h v the adjacent inside ,froide strip 23T. The recess 38 to permit the latch here `pirated to the ends ol the nlenilier E20 to swine; in wardlv, to more clear ol the dctent 19 is formed in the outside. tace et this strip 37. il hell crank lever 3l) is pivoted in the recess 18VL and has a pin Il() adapted to engage the latch and torce it outwardly when the lever depressed, a coil spring ell` being' pro `vided to restore the lever to initial position. The operation ol. this device is the .saine as that described, the latch 22 being held, by its engagement with thegruide rail 3T, in interlocked relation with the detent 19 when raised with the, sash to operating?l` position. i l

Havingthus described my invention, what I claim as new and desire to secure by Letters Patent, isz i i l i i. A sash guard having means operable'to interlock .it with a sash, and readily aecessible means to provide lor unlockingthe guard from the sash which is operable only when the sash is in .its closed position.

Q. In combination, a sash guard, a sash, elements which co-act to interlock the guard and sash :tor joint operation, means to unlock said elements when the sash is lowered and means to hold the said elements against unlocking;l When the sash is raised.

3. In combination with a Window trame and a vertically sliding sash having' a dctent means, of a guard having manually controllable latch means to detachahly connect it to said sash detent means, said latch heine' disposed to he held against 'unlatchinpr hy the window frame when the sash is raised, and a recess in the :li'ame to permit the latch means when the sash is lowered helingdisengaged trom the detent means.

A Window guard in accordance with claim 3, in which the :l'rame is provided with a countersunk cover plate Vtor the recess therein, said plateihaving an out- Wa-rdljT opening;v springqn'cssed door therein disposed to come opposite to said .latch means when the sash is lowered and adapted to yield to permit the latch means to enter the recess when moved away from said dctent means.

5. In combination with a vertically sliding' sash and a window trame therefor. of a guard slidahle through said frame and co-acting latch elements, exposed manually f controllable means to disengage said latch elements and means at the bottom only ofY the 'trame to provide toi-theV necessary relative movement between said latch elements to engage or disengage them.

G. A window guard means'in accordance with claim 5, in which the saidsash is provided with latch releasing means closely associated with sash lifting'grips;

7. In combination with a window frame,v

of a vertically slidable sash having counter-balancing weights suitably connected thereto, a guard detachably connected there# to, and stop means to support the'weight of the guard when in any operating position to prevent the added weight of the guard overbalancing the countelaveights.A L8. In combination, Ya windowk frame, a pair of vertically slidable sashes mounted therein, a guard ixedly attached to the top of the upper sash, weights to counterbalance the upper sash and guard7 a lower guard, means to detachably connect it to the lower sash, weights to counterbalance only the lower'sash, and pawl and ratchet means to supportv th-e weight of the lower guard when raised with the lower sash to different operating positions.

In testimony whereof I aix my signature. Y

ARTHUR T. MCWANE. 

